42143141 has 2 divisors, whose sum is σ = 42143142. Its totient is φ = 42143140.

The previous prime is 42143089. The next prime is 42143183. The reversal of 42143141 is 14134124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39753025 + 2390116 = 6305^2 + 1546^2 .

It is a cyclic number.

It is not a de Polignac number, because 42143141 - 2⁶ = 42143077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42143441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071570 + 21071571.

It is an arithmetic number, because the mean of its divisors is an integer number (21071571).

Almost surely, 2^42143141 is an apocalyptic number.

It is an amenable number.

42143141 is a deficient number, since it is larger than the sum of its proper divisors (1).

42143141 is an equidigital number, since it uses as much as digits as its factorization.

42143141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 42143141 is about 6491.7748728680. The cubic root of 42143141 is about 347.9971071455.

Adding to 42143141 its reverse (14134124), we get a palindrome (56277265).

The spelling of 42143141 in words is "forty-two million, one hundred forty-three thousand, one hundred forty-one".